Home / 1,458.61-2,175.36-1,240.62

Finding the Fourth Proportional to 1,458.61, 2,175.36 and 1,240.62

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Solution

The fourth proportional to 1,458.61, 2,175.36 and 1,240.62 is: 1,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.61 : 2,175.36 = 1,240.62 : x
  2. Step 2: Convert to fraction form
    1,458.61/2,175.36 = 1,240.62/x
  3. Step 3: Cross multiply
    1,458.61x = 2,175.36 × 1,240.62
  4. Step 4: Simplify right side
    1,458.61x = 2,698,782.31
  5. Step 5: Solve for x
    x = 2,698,782.31/1,458.61
  6. Step 6: Final answer
    x = 1,850.25

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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.