Home / 1,240.24-1,860.40-374.52

Finding the Fourth Proportional to 1,240.24, 1,860.40 and 374.52

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Solution

The fourth proportional to 1,240.24, 1,860.40 and 374.52 is: 561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.24 : 1,860.40 = 374.52 : x
  2. Step 2: Convert to fraction form
    1,240.24/1,860.40 = 374.52/x
  3. Step 3: Cross multiply
    1,240.24x = 1,860.40 × 374.52
  4. Step 4: Simplify right side
    1,240.24x = 696,757.01
  5. Step 5: Solve for x
    x = 696,757.01/1,240.24
  6. Step 6: Final answer
    x = 561.79

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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.