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Finding the Fourth Proportional to 1,925.04, 2,887.92 and 693.12

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Solution

The fourth proportional to 1,925.04, 2,887.92 and 693.12 is: 1,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.04 : 2,887.92 = 693.12 : x
  2. Step 2: Convert to fraction form
    1,925.04/2,887.92 = 693.12/x
  3. Step 3: Cross multiply
    1,925.04x = 2,887.92 × 693.12
  4. Step 4: Simplify right side
    1,925.04x = 2,001,675.11
  5. Step 5: Solve for x
    x = 2,001,675.11/1,925.04
  6. Step 6: Final answer
    x = 1,039.81

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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.