Home / 2,159.17-2,980.13-1,373.06

Finding the Fourth Proportional to 2,159.17, 2,980.13 and 1,373.06

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Solution

The fourth proportional to 2,159.17, 2,980.13 and 1,373.06 is: 1,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.17 : 2,980.13 = 1,373.06 : x
  2. Step 2: Convert to fraction form
    2,159.17/2,980.13 = 1,373.06/x
  3. Step 3: Cross multiply
    2,159.17x = 2,980.13 × 1,373.06
  4. Step 4: Simplify right side
    2,159.17x = 4,091,897.88
  5. Step 5: Solve for x
    x = 4,091,897.88/2,159.17
  6. Step 6: Final answer
    x = 1,895.13

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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.