Home / 2,689.23-3,709.29-1,848.45

Finding the Fourth Proportional to 2,689.23, 3,709.29 and 1,848.45

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Solution

The fourth proportional to 2,689.23, 3,709.29 and 1,848.45 is: 2,549.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.23 : 3,709.29 = 1,848.45 : x
  2. Step 2: Convert to fraction form
    2,689.23/3,709.29 = 1,848.45/x
  3. Step 3: Cross multiply
    2,689.23x = 3,709.29 × 1,848.45
  4. Step 4: Simplify right side
    2,689.23x = 6,856,437.10
  5. Step 5: Solve for x
    x = 6,856,437.10/2,689.23
  6. Step 6: Final answer
    x = 2,549.59

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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.