Home / 5,291.14-7,938.87-2,920.18

Finding the Fourth Proportional to 5,291.14, 7,938.87 and 2,920.18

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Solution

The fourth proportional to 5,291.14, 7,938.87 and 2,920.18 is: 4,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.14 : 7,938.87 = 2,920.18 : x
  2. Step 2: Convert to fraction form
    5,291.14/7,938.87 = 2,920.18/x
  3. Step 3: Cross multiply
    5,291.14x = 7,938.87 × 2,920.18
  4. Step 4: Simplify right side
    5,291.14x = 23,182,929.40
  5. Step 5: Solve for x
    x = 23,182,929.40/5,291.14
  6. Step 6: Final answer
    x = 4,381.46

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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.