Home / 1,845.20-2,547.24-1,321.52

Finding the Fourth Proportional to 1,845.20, 2,547.24 and 1,321.52

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Solution

The fourth proportional to 1,845.20, 2,547.24 and 1,321.52 is: 1,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.20 : 2,547.24 = 1,321.52 : x
  2. Step 2: Convert to fraction form
    1,845.20/2,547.24 = 1,321.52/x
  3. Step 3: Cross multiply
    1,845.20x = 2,547.24 × 1,321.52
  4. Step 4: Simplify right side
    1,845.20x = 3,366,228.60
  5. Step 5: Solve for x
    x = 3,366,228.60/1,845.20
  6. Step 6: Final answer
    x = 1,824.32

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1.5x scale

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.