Home / 1,482.18-2,223.98-742.55

Finding the Fourth Proportional to 1,482.18, 2,223.98 and 742.55

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Solution

The fourth proportional to 1,482.18, 2,223.98 and 742.55 is: 1,114.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.18 : 2,223.98 = 742.55 : x
  2. Step 2: Convert to fraction form
    1,482.18/2,223.98 = 742.55/x
  3. Step 3: Cross multiply
    1,482.18x = 2,223.98 × 742.55
  4. Step 4: Simplify right side
    1,482.18x = 1,651,423.77
  5. Step 5: Solve for x
    x = 1,651,423.77/1,482.18
  6. Step 6: Final answer
    x = 1,114.19

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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.