Home / 1,410.72-2,101.08-1,335.84

Finding the Fourth Proportional to 1,410.72, 2,101.08 and 1,335.84

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Solution

The fourth proportional to 1,410.72, 2,101.08 and 1,335.84 is: 1,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.72 : 2,101.08 = 1,335.84 : x
  2. Step 2: Convert to fraction form
    1,410.72/2,101.08 = 1,335.84/x
  3. Step 3: Cross multiply
    1,410.72x = 2,101.08 × 1,335.84
  4. Step 4: Simplify right side
    1,410.72x = 2,806,706.71
  5. Step 5: Solve for x
    x = 2,806,706.71/1,410.72
  6. Step 6: Final answer
    x = 1,989.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.