Home / 1,332.12-1,985.79-1,259.16

Finding the Fourth Proportional to 1,332.12, 1,985.79 and 1,259.16

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Solution

The fourth proportional to 1,332.12, 1,985.79 and 1,259.16 is: 1,877.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.12 : 1,985.79 = 1,259.16 : x
  2. Step 2: Convert to fraction form
    1,332.12/1,985.79 = 1,259.16/x
  3. Step 3: Cross multiply
    1,332.12x = 1,985.79 × 1,259.16
  4. Step 4: Simplify right side
    1,332.12x = 2,500,427.34
  5. Step 5: Solve for x
    x = 2,500,427.34/1,332.12
  6. Step 6: Final answer
    x = 1,877.03

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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.