Home / 1,032.60-1,415.32-1,025.40

Finding the Fourth Proportional to 1,032.60, 1,415.32 and 1,025.40

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Solution

The fourth proportional to 1,032.60, 1,415.32 and 1,025.40 is: 1,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.60 : 1,415.32 = 1,025.40 : x
  2. Step 2: Convert to fraction form
    1,032.60/1,415.32 = 1,025.40/x
  3. Step 3: Cross multiply
    1,032.60x = 1,415.32 × 1,025.40
  4. Step 4: Simplify right side
    1,032.60x = 1,451,269.13
  5. Step 5: Solve for x
    x = 1,451,269.13/1,032.60
  6. Step 6: Final answer
    x = 1,405.45

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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.