Home / 1,541.49-2,314.65-1,218.30

Finding the Fourth Proportional to 1,541.49, 2,314.65 and 1,218.30

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Solution

The fourth proportional to 1,541.49, 2,314.65 and 1,218.30 is: 1,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.49 : 2,314.65 = 1,218.30 : x
  2. Step 2: Convert to fraction form
    1,541.49/2,314.65 = 1,218.30/x
  3. Step 3: Cross multiply
    1,541.49x = 2,314.65 × 1,218.30
  4. Step 4: Simplify right side
    1,541.49x = 2,819,938.10
  5. Step 5: Solve for x
    x = 2,819,938.10/1,541.49
  6. Step 6: Final answer
    x = 1,829.36

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1.5x scale

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.