Home / 1,188.61-1,637.80-1,010.95

Finding the Fourth Proportional to 1,188.61, 1,637.80 and 1,010.95

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Solution

The fourth proportional to 1,188.61, 1,637.80 and 1,010.95 is: 1,393.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.61 : 1,637.80 = 1,010.95 : x
  2. Step 2: Convert to fraction form
    1,188.61/1,637.80 = 1,010.95/x
  3. Step 3: Cross multiply
    1,188.61x = 1,637.80 × 1,010.95
  4. Step 4: Simplify right side
    1,188.61x = 1,655,733.91
  5. Step 5: Solve for x
    x = 1,655,733.91/1,188.61
  6. Step 6: Final answer
    x = 1,393.00

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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.