Home / 4,777.66-7,166.49-1,315.18

Finding the Fourth Proportional to 4,777.66, 7,166.49 and 1,315.18

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Solution

The fourth proportional to 4,777.66, 7,166.49 and 1,315.18 is: 1,972.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.66 : 7,166.49 = 1,315.18 : x
  2. Step 2: Convert to fraction form
    4,777.66/7,166.49 = 1,315.18/x
  3. Step 3: Cross multiply
    4,777.66x = 7,166.49 × 1,315.18
  4. Step 4: Simplify right side
    4,777.66x = 9,425,224.32
  5. Step 5: Solve for x
    x = 9,425,224.32/4,777.66
  6. Step 6: Final answer
    x = 1,972.77

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.