Home / 5,920.13-8,878.28-1,970.55

Finding the Fourth Proportional to 5,920.13, 8,878.28 and 1,970.55

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Solution

The fourth proportional to 5,920.13, 8,878.28 and 1,970.55 is: 2,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.13 : 8,878.28 = 1,970.55 : x
  2. Step 2: Convert to fraction form
    5,920.13/8,878.28 = 1,970.55/x
  3. Step 3: Cross multiply
    5,920.13x = 8,878.28 × 1,970.55
  4. Step 4: Simplify right side
    5,920.13x = 17,495,084.80
  5. Step 5: Solve for x
    x = 17,495,084.80/5,920.13
  6. Step 6: Final answer
    x = 2,955.18

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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.