Home / 1,541.59-2,308.14-1,210.78

Finding the Fourth Proportional to 1,541.59, 2,308.14 and 1,210.78

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Solution

The fourth proportional to 1,541.59, 2,308.14 and 1,210.78 is: 1,812.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.59 : 2,308.14 = 1,210.78 : x
  2. Step 2: Convert to fraction form
    1,541.59/2,308.14 = 1,210.78/x
  3. Step 3: Cross multiply
    1,541.59x = 2,308.14 × 1,210.78
  4. Step 4: Simplify right side
    1,541.59x = 2,794,649.75
  5. Step 5: Solve for x
    x = 2,794,649.75/1,541.59
  6. Step 6: Final answer
    x = 1,812.84

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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.