Home / 1,693.60-2,337.14-985.58

Finding the Fourth Proportional to 1,693.60, 2,337.14 and 985.58

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Solution

The fourth proportional to 1,693.60, 2,337.14 and 985.58 is: 1,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.60 : 2,337.14 = 985.58 : x
  2. Step 2: Convert to fraction form
    1,693.60/2,337.14 = 985.58/x
  3. Step 3: Cross multiply
    1,693.60x = 2,337.14 × 985.58
  4. Step 4: Simplify right side
    1,693.60x = 2,303,438.44
  5. Step 5: Solve for x
    x = 2,303,438.44/1,693.60
  6. Step 6: Final answer
    x = 1,360.08

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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.