Home / 5,346.28-7,378.14-2,988.28

Finding the Fourth Proportional to 5,346.28, 7,378.14 and 2,988.28

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Solution

The fourth proportional to 5,346.28, 7,378.14 and 2,988.28 is: 4,123.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.28 : 7,378.14 = 2,988.28 : x
  2. Step 2: Convert to fraction form
    5,346.28/7,378.14 = 2,988.28/x
  3. Step 3: Cross multiply
    5,346.28x = 7,378.14 × 2,988.28
  4. Step 4: Simplify right side
    5,346.28x = 22,047,948.20
  5. Step 5: Solve for x
    x = 22,047,948.20/5,346.28
  6. Step 6: Final answer
    x = 4,123.98

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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.