Home / 1,689.37-2,330.35-1,016.70

Finding the Fourth Proportional to 1,689.37, 2,330.35 and 1,016.70

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Solution

The fourth proportional to 1,689.37, 2,330.35 and 1,016.70 is: 1,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689.37 : 2,330.35 = 1,016.70 : x
  2. Step 2: Convert to fraction form
    1,689.37/2,330.35 = 1,016.70/x
  3. Step 3: Cross multiply
    1,689.37x = 2,330.35 × 1,016.70
  4. Step 4: Simplify right side
    1,689.37x = 2,369,266.85
  5. Step 5: Solve for x
    x = 2,369,266.85/1,689.37
  6. Step 6: Final answer
    x = 1,402.46

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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.