Home / 3,588.90-5,381.72-1,280.46

Finding the Fourth Proportional to 3,588.90, 5,381.72 and 1,280.46

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Solution

The fourth proportional to 3,588.90, 5,381.72 and 1,280.46 is: 1,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.90 : 5,381.72 = 1,280.46 : x
  2. Step 2: Convert to fraction form
    3,588.90/5,381.72 = 1,280.46/x
  3. Step 3: Cross multiply
    3,588.90x = 5,381.72 × 1,280.46
  4. Step 4: Simplify right side
    3,588.90x = 6,891,077.19
  5. Step 5: Solve for x
    x = 6,891,077.19/3,588.90
  6. Step 6: Final answer
    x = 1,920.11

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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.