Home / 1,528.35-2,292.39-748.05

Finding the Fourth Proportional to 1,528.35, 2,292.39 and 748.05

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Solution

The fourth proportional to 1,528.35, 2,292.39 and 748.05 is: 1,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.35 : 2,292.39 = 748.05 : x
  2. Step 2: Convert to fraction form
    1,528.35/2,292.39 = 748.05/x
  3. Step 3: Cross multiply
    1,528.35x = 2,292.39 × 748.05
  4. Step 4: Simplify right side
    1,528.35x = 1,714,822.34
  5. Step 5: Solve for x
    x = 1,714,822.34/1,528.35
  6. Step 6: Final answer
    x = 1,122.01

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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.