Home / 1,541.52-2,312.46-1,421.28

Finding the Fourth Proportional to 1,541.52, 2,312.46 and 1,421.28

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Solution

The fourth proportional to 1,541.52, 2,312.46 and 1,421.28 is: 2,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.52 : 2,312.46 = 1,421.28 : x
  2. Step 2: Convert to fraction form
    1,541.52/2,312.46 = 1,421.28/x
  3. Step 3: Cross multiply
    1,541.52x = 2,312.46 × 1,421.28
  4. Step 4: Simplify right side
    1,541.52x = 3,286,653.15
  5. Step 5: Solve for x
    x = 3,286,653.15/1,541.52
  6. Step 6: Final answer
    x = 2,132.09

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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.