Home / 4,720.80-7,044.27-4,688.40

Finding the Fourth Proportional to 4,720.80, 7,044.27 and 4,688.40

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Solution

The fourth proportional to 4,720.80, 7,044.27 and 4,688.40 is: 6,995.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.80 : 7,044.27 = 4,688.40 : x
  2. Step 2: Convert to fraction form
    4,720.80/7,044.27 = 4,688.40/x
  3. Step 3: Cross multiply
    4,720.80x = 7,044.27 × 4,688.40
  4. Step 4: Simplify right side
    4,720.80x = 33,026,355.47
  5. Step 5: Solve for x
    x = 33,026,355.47/4,720.80
  6. Step 6: Final answer
    x = 6,995.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.