Home / 1,681.16-2,518.86-1,335.56

Finding the Fourth Proportional to 1,681.16, 2,518.86 and 1,335.56

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Solution

The fourth proportional to 1,681.16, 2,518.86 and 1,335.56 is: 2,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.16 : 2,518.86 = 1,335.56 : x
  2. Step 2: Convert to fraction form
    1,681.16/2,518.86 = 1,335.56/x
  3. Step 3: Cross multiply
    1,681.16x = 2,518.86 × 1,335.56
  4. Step 4: Simplify right side
    1,681.16x = 3,364,088.66
  5. Step 5: Solve for x
    x = 3,364,088.66/1,681.16
  6. Step 6: Final answer
    x = 2,001.05

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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.