Home / 2,290.07-3,160.29-1,242.13

Finding the Fourth Proportional to 2,290.07, 3,160.29 and 1,242.13

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Solution

The fourth proportional to 2,290.07, 3,160.29 and 1,242.13 is: 1,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.07 : 3,160.29 = 1,242.13 : x
  2. Step 2: Convert to fraction form
    2,290.07/3,160.29 = 1,242.13/x
  3. Step 3: Cross multiply
    2,290.07x = 3,160.29 × 1,242.13
  4. Step 4: Simplify right side
    2,290.07x = 3,925,491.02
  5. Step 5: Solve for x
    x = 3,925,491.02/2,290.07
  6. Step 6: Final answer
    x = 1,714.14

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1.5x scale

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.