Home / 5,127.47-7,690.84-2,929.31

Finding the Fourth Proportional to 5,127.47, 7,690.84 and 2,929.31

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Solution

The fourth proportional to 5,127.47, 7,690.84 and 2,929.31 is: 4,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.47 : 7,690.84 = 2,929.31 : x
  2. Step 2: Convert to fraction form
    5,127.47/7,690.84 = 2,929.31/x
  3. Step 3: Cross multiply
    5,127.47x = 7,690.84 × 2,929.31
  4. Step 4: Simplify right side
    5,127.47x = 22,528,808.74
  5. Step 5: Solve for x
    x = 22,528,808.74/5,127.47
  6. Step 6: Final answer
    x = 4,393.75

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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.