Home / 1,925.61-2,657.22-1,086.45

Finding the Fourth Proportional to 1,925.61, 2,657.22 and 1,086.45

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Solution

The fourth proportional to 1,925.61, 2,657.22 and 1,086.45 is: 1,499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.61 : 2,657.22 = 1,086.45 : x
  2. Step 2: Convert to fraction form
    1,925.61/2,657.22 = 1,086.45/x
  3. Step 3: Cross multiply
    1,925.61x = 2,657.22 × 1,086.45
  4. Step 4: Simplify right side
    1,925.61x = 2,886,936.67
  5. Step 5: Solve for x
    x = 2,886,936.67/1,925.61
  6. Step 6: Final answer
    x = 1,499.23

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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.