Home / 2,139.48-2,952.18-1,195.16

Finding the Fourth Proportional to 2,139.48, 2,952.18 and 1,195.16

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Solution

The fourth proportional to 2,139.48, 2,952.18 and 1,195.16 is: 1,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.48 : 2,952.18 = 1,195.16 : x
  2. Step 2: Convert to fraction form
    2,139.48/2,952.18 = 1,195.16/x
  3. Step 3: Cross multiply
    2,139.48x = 2,952.18 × 1,195.16
  4. Step 4: Simplify right side
    2,139.48x = 3,528,312.69
  5. Step 5: Solve for x
    x = 3,528,312.69/2,139.48
  6. Step 6: Final answer
    x = 1,649.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.