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Finding the Fourth Proportional to 7,776.99, 10,732.23 and 4,240.22

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Solution

The fourth proportional to 7,776.99, 10,732.23 and 4,240.22 is: 5,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.99 : 10,732.23 = 4,240.22 : x
  2. Step 2: Convert to fraction form
    7,776.99/10,732.23 = 4,240.22/x
  3. Step 3: Cross multiply
    7,776.99x = 10,732.23 × 4,240.22
  4. Step 4: Simplify right side
    7,776.99x = 45,506,962.63
  5. Step 5: Solve for x
    x = 45,506,962.63/7,776.99
  6. Step 6: Final answer
    x = 5,851.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.