Home / 1,535.60-2,104.37-1,387.98

Finding the Fourth Proportional to 1,535.60, 2,104.37 and 1,387.98

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Solution

The fourth proportional to 1,535.60, 2,104.37 and 1,387.98 is: 1,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.60 : 2,104.37 = 1,387.98 : x
  2. Step 2: Convert to fraction form
    1,535.60/2,104.37 = 1,387.98/x
  3. Step 3: Cross multiply
    1,535.60x = 2,104.37 × 1,387.98
  4. Step 4: Simplify right side
    1,535.60x = 2,920,816.53
  5. Step 5: Solve for x
    x = 2,920,816.53/1,535.60
  6. Step 6: Final answer
    x = 1,902.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.