Home / 7,248.70-10,871.37-3,547.21

Finding the Fourth Proportional to 7,248.70, 10,871.37 and 3,547.21

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Solution

The fourth proportional to 7,248.70, 10,871.37 and 3,547.21 is: 5,319.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.70 : 10,871.37 = 3,547.21 : x
  2. Step 2: Convert to fraction form
    7,248.70/10,871.37 = 3,547.21/x
  3. Step 3: Cross multiply
    7,248.70x = 10,871.37 × 3,547.21
  4. Step 4: Simplify right side
    7,248.70x = 38,563,032.38
  5. Step 5: Solve for x
    x = 38,563,032.38/7,248.70
  6. Step 6: Final answer
    x = 5,319.99

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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.