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Finding the Fourth Proportional to 7,000.77, 10,501.05 and 2,840.76

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Solution

The fourth proportional to 7,000.77, 10,501.05 and 2,840.76 is: 4,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.77 : 10,501.05 = 2,840.76 : x
  2. Step 2: Convert to fraction form
    7,000.77/10,501.05 = 2,840.76/x
  3. Step 3: Cross multiply
    7,000.77x = 10,501.05 × 2,840.76
  4. Step 4: Simplify right side
    7,000.77x = 29,830,962.80
  5. Step 5: Solve for x
    x = 29,830,962.80/7,000.77
  6. Step 6: Final answer
    x = 4,261.10

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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.