Home / 1,657.83-2,288.57-985.59

Finding the Fourth Proportional to 1,657.83, 2,288.57 and 985.59

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Solution

The fourth proportional to 1,657.83, 2,288.57 and 985.59 is: 1,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.83 : 2,288.57 = 985.59 : x
  2. Step 2: Convert to fraction form
    1,657.83/2,288.57 = 985.59/x
  3. Step 3: Cross multiply
    1,657.83x = 2,288.57 × 985.59
  4. Step 4: Simplify right side
    1,657.83x = 2,255,591.71
  5. Step 5: Solve for x
    x = 2,255,591.71/1,657.83
  6. Step 6: Final answer
    x = 1,360.57

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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.