Home / 3,531.51-4,862.31-2,689.50

Finding the Fourth Proportional to 3,531.51, 4,862.31 and 2,689.50

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Solution

The fourth proportional to 3,531.51, 4,862.31 and 2,689.50 is: 3,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.51 : 4,862.31 = 2,689.50 : x
  2. Step 2: Convert to fraction form
    3,531.51/4,862.31 = 2,689.50/x
  3. Step 3: Cross multiply
    3,531.51x = 4,862.31 × 2,689.50
  4. Step 4: Simplify right side
    3,531.51x = 13,077,182.75
  5. Step 5: Solve for x
    x = 13,077,182.75/3,531.51
  6. Step 6: Final answer
    x = 3,703.00

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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.