Home / 5,346.61-7,378.33-2,988.75

Finding the Fourth Proportional to 5,346.61, 7,378.33 and 2,988.75

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Solution

The fourth proportional to 5,346.61, 7,378.33 and 2,988.75 is: 4,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.61 : 7,378.33 = 2,988.75 : x
  2. Step 2: Convert to fraction form
    5,346.61/7,378.33 = 2,988.75/x
  3. Step 3: Cross multiply
    5,346.61x = 7,378.33 × 2,988.75
  4. Step 4: Simplify right side
    5,346.61x = 22,051,946.90
  5. Step 5: Solve for x
    x = 22,051,946.90/5,346.61
  6. Step 6: Final answer
    x = 4,124.48

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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.