Home / 2,125.08-2,931.64-1,426.68

Finding the Fourth Proportional to 2,125.08, 2,931.64 and 1,426.68

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Solution

The fourth proportional to 2,125.08, 2,931.64 and 1,426.68 is: 1,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.08 : 2,931.64 = 1,426.68 : x
  2. Step 2: Convert to fraction form
    2,125.08/2,931.64 = 1,426.68/x
  3. Step 3: Cross multiply
    2,125.08x = 2,931.64 × 1,426.68
  4. Step 4: Simplify right side
    2,125.08x = 4,182,512.16
  5. Step 5: Solve for x
    x = 4,182,512.16/2,125.08
  6. Step 6: Final answer
    x = 1,968.17

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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.