Home / 1,528.66-2,281.43-1,381.03

Finding the Fourth Proportional to 1,528.66, 2,281.43 and 1,381.03

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Solution

The fourth proportional to 1,528.66, 2,281.43 and 1,381.03 is: 2,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.66 : 2,281.43 = 1,381.03 : x
  2. Step 2: Convert to fraction form
    1,528.66/2,281.43 = 1,381.03/x
  3. Step 3: Cross multiply
    1,528.66x = 2,281.43 × 1,381.03
  4. Step 4: Simplify right side
    1,528.66x = 3,150,733.85
  5. Step 5: Solve for x
    x = 3,150,733.85/1,528.66
  6. Step 6: Final answer
    x = 2,061.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.