Home / 1,979.13-2,970.44-1,543.17

Finding the Fourth Proportional to 1,979.13, 2,970.44 and 1,543.17

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Solution

The fourth proportional to 1,979.13, 2,970.44 and 1,543.17 is: 2,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.13 : 2,970.44 = 1,543.17 : x
  2. Step 2: Convert to fraction form
    1,979.13/2,970.44 = 1,543.17/x
  3. Step 3: Cross multiply
    1,979.13x = 2,970.44 × 1,543.17
  4. Step 4: Simplify right side
    1,979.13x = 4,583,893.89
  5. Step 5: Solve for x
    x = 4,583,893.89/1,979.13
  6. Step 6: Final answer
    x = 2,316.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.