Home / 1,259.64-1,875.18-1,245.60

Finding the Fourth Proportional to 1,259.64, 1,875.18 and 1,245.60

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Solution

The fourth proportional to 1,259.64, 1,875.18 and 1,245.60 is: 1,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.64 : 1,875.18 = 1,245.60 : x
  2. Step 2: Convert to fraction form
    1,259.64/1,875.18 = 1,245.60/x
  3. Step 3: Cross multiply
    1,259.64x = 1,875.18 × 1,245.60
  4. Step 4: Simplify right side
    1,259.64x = 2,335,724.21
  5. Step 5: Solve for x
    x = 2,335,724.21/1,259.64
  6. Step 6: Final answer
    x = 1,854.28

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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.