Home / 1,801.20-2,484.90-1,302.74

Finding the Fourth Proportional to 1,801.20, 2,484.90 and 1,302.74

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Solution

The fourth proportional to 1,801.20, 2,484.90 and 1,302.74 is: 1,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.20 : 2,484.90 = 1,302.74 : x
  2. Step 2: Convert to fraction form
    1,801.20/2,484.90 = 1,302.74/x
  3. Step 3: Cross multiply
    1,801.20x = 2,484.90 × 1,302.74
  4. Step 4: Simplify right side
    1,801.20x = 3,237,166.20
  5. Step 5: Solve for x
    x = 3,237,166.20/1,801.20
  6. Step 6: Final answer
    x = 1,797.23

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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.