Home / 1,528.50-2,292.78-374.26

Finding the Fourth Proportional to 1,528.50, 2,292.78 and 374.26

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Solution

The fourth proportional to 1,528.50, 2,292.78 and 374.26 is: 561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.50 : 2,292.78 = 374.26 : x
  2. Step 2: Convert to fraction form
    1,528.50/2,292.78 = 374.26/x
  3. Step 3: Cross multiply
    1,528.50x = 2,292.78 × 374.26
  4. Step 4: Simplify right side
    1,528.50x = 858,095.84
  5. Step 5: Solve for x
    x = 858,095.84/1,528.50
  6. Step 6: Final answer
    x = 561.40

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Double scale
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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.