Home / 7,038.92-9,718.26-4,387.40

Finding the Fourth Proportional to 7,038.92, 9,718.26 and 4,387.40

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Solution

The fourth proportional to 7,038.92, 9,718.26 and 4,387.40 is: 6,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.92 : 9,718.26 = 4,387.40 : x
  2. Step 2: Convert to fraction form
    7,038.92/9,718.26 = 4,387.40/x
  3. Step 3: Cross multiply
    7,038.92x = 9,718.26 × 4,387.40
  4. Step 4: Simplify right side
    7,038.92x = 42,637,893.92
  5. Step 5: Solve for x
    x = 42,637,893.92/7,038.92
  6. Step 6: Final answer
    x = 6,057.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.