Home / 1,637.60-2,259.13-974.07

Finding the Fourth Proportional to 1,637.60, 2,259.13 and 974.07

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Solution

The fourth proportional to 1,637.60, 2,259.13 and 974.07 is: 1,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.60 : 2,259.13 = 974.07 : x
  2. Step 2: Convert to fraction form
    1,637.60/2,259.13 = 974.07/x
  3. Step 3: Cross multiply
    1,637.60x = 2,259.13 × 974.07
  4. Step 4: Simplify right side
    1,637.60x = 2,200,550.76
  5. Step 5: Solve for x
    x = 2,200,550.76/1,637.60
  6. Step 6: Final answer
    x = 1,343.77

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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.