Home / 1,531.55-2,286.93-1,490.03

Finding the Fourth Proportional to 1,531.55, 2,286.93 and 1,490.03

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Solution

The fourth proportional to 1,531.55, 2,286.93 and 1,490.03 is: 2,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.55 : 2,286.93 = 1,490.03 : x
  2. Step 2: Convert to fraction form
    1,531.55/2,286.93 = 1,490.03/x
  3. Step 3: Cross multiply
    1,531.55x = 2,286.93 × 1,490.03
  4. Step 4: Simplify right side
    1,531.55x = 3,407,586.86
  5. Step 5: Solve for x
    x = 3,407,586.86/1,531.55
  6. Step 6: Final answer
    x = 2,224.93

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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.