Home / 2,102.71-2,901.67-1,158.45

Finding the Fourth Proportional to 2,102.71, 2,901.67 and 1,158.45

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Solution

The fourth proportional to 2,102.71, 2,901.67 and 1,158.45 is: 1,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.71 : 2,901.67 = 1,158.45 : x
  2. Step 2: Convert to fraction form
    2,102.71/2,901.67 = 1,158.45/x
  3. Step 3: Cross multiply
    2,102.71x = 2,901.67 × 1,158.45
  4. Step 4: Simplify right side
    2,102.71x = 3,361,448.67
  5. Step 5: Solve for x
    x = 3,361,448.67/2,102.71
  6. Step 6: Final answer
    x = 1,598.63

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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.