Home / 2,688.47-4,032.25-714.13

Finding the Fourth Proportional to 2,688.47, 4,032.25 and 714.13

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Solution

The fourth proportional to 2,688.47, 4,032.25 and 714.13 is: 1,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.47 : 4,032.25 = 714.13 : x
  2. Step 2: Convert to fraction form
    2,688.47/4,032.25 = 714.13/x
  3. Step 3: Cross multiply
    2,688.47x = 4,032.25 × 714.13
  4. Step 4: Simplify right side
    2,688.47x = 2,879,538.83
  5. Step 5: Solve for x
    x = 2,879,538.83/2,688.47
  6. Step 6: Final answer
    x = 1,071.07

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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.