Home / 1,925.40-2,656.99-1,086.07

Finding the Fourth Proportional to 1,925.40, 2,656.99 and 1,086.07

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Solution

The fourth proportional to 1,925.40, 2,656.99 and 1,086.07 is: 1,498.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.40 : 2,656.99 = 1,086.07 : x
  2. Step 2: Convert to fraction form
    1,925.40/2,656.99 = 1,086.07/x
  3. Step 3: Cross multiply
    1,925.40x = 2,656.99 × 1,086.07
  4. Step 4: Simplify right side
    1,925.40x = 2,885,672.41
  5. Step 5: Solve for x
    x = 2,885,672.41/1,925.40
  6. Step 6: Final answer
    x = 1,498.74

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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.