Home / 1,637.21-2,259.60-974.13

Finding the Fourth Proportional to 1,637.21, 2,259.60 and 974.13

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Solution

The fourth proportional to 1,637.21, 2,259.60 and 974.13 is: 1,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.21 : 2,259.60 = 974.13 : x
  2. Step 2: Convert to fraction form
    1,637.21/2,259.60 = 974.13/x
  3. Step 3: Cross multiply
    1,637.21x = 2,259.60 × 974.13
  4. Step 4: Simplify right side
    1,637.21x = 2,201,132.02
  5. Step 5: Solve for x
    x = 2,201,132.02/1,637.21
  6. Step 6: Final answer
    x = 1,344.44

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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.