Home / 1,345.60-2,003.51-1,265.44

Finding the Fourth Proportional to 1,345.60, 2,003.51 and 1,265.44

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Solution

The fourth proportional to 1,345.60, 2,003.51 and 1,265.44 is: 1,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.60 : 2,003.51 = 1,265.44 : x
  2. Step 2: Convert to fraction form
    1,345.60/2,003.51 = 1,265.44/x
  3. Step 3: Cross multiply
    1,345.60x = 2,003.51 × 1,265.44
  4. Step 4: Simplify right side
    1,345.60x = 2,535,321.69
  5. Step 5: Solve for x
    x = 2,535,321.69/1,345.60
  6. Step 6: Final answer
    x = 1,884.16

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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.