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Finding the Fourth Proportional to 4,751.07, 7,127.10 and 1,630.20

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Solution

The fourth proportional to 4,751.07, 7,127.10 and 1,630.20 is: 2,445.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.07 : 7,127.10 = 1,630.20 : x
  2. Step 2: Convert to fraction form
    4,751.07/7,127.10 = 1,630.20/x
  3. Step 3: Cross multiply
    4,751.07x = 7,127.10 × 1,630.20
  4. Step 4: Simplify right side
    4,751.07x = 11,618,598.42
  5. Step 5: Solve for x
    x = 11,618,598.42/4,751.07
  6. Step 6: Final answer
    x = 2,445.47

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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.