Home / 1,612.07-2,225.06-982.95

Finding the Fourth Proportional to 1,612.07, 2,225.06 and 982.95

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Solution

The fourth proportional to 1,612.07, 2,225.06 and 982.95 is: 1,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.07 : 2,225.06 = 982.95 : x
  2. Step 2: Convert to fraction form
    1,612.07/2,225.06 = 982.95/x
  3. Step 3: Cross multiply
    1,612.07x = 2,225.06 × 982.95
  4. Step 4: Simplify right side
    1,612.07x = 2,187,111.95
  5. Step 5: Solve for x
    x = 2,187,111.95/1,612.07
  6. Step 6: Final answer
    x = 1,356.71

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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.