Home / 1,637.52-2,457.78-1,274.64

Finding the Fourth Proportional to 1,637.52, 2,457.78 and 1,274.64

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Solution

The fourth proportional to 1,637.52, 2,457.78 and 1,274.64 is: 1,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.52 : 2,457.78 = 1,274.64 : x
  2. Step 2: Convert to fraction form
    1,637.52/2,457.78 = 1,274.64/x
  3. Step 3: Cross multiply
    1,637.52x = 2,457.78 × 1,274.64
  4. Step 4: Simplify right side
    1,637.52x = 3,132,784.70
  5. Step 5: Solve for x
    x = 3,132,784.70/1,637.52
  6. Step 6: Final answer
    x = 1,913.13

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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.