Home / 3,312.29-4,569.96-1,985.51

Finding the Fourth Proportional to 3,312.29, 4,569.96 and 1,985.51

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Solution

The fourth proportional to 3,312.29, 4,569.96 and 1,985.51 is: 2,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.29 : 4,569.96 = 1,985.51 : x
  2. Step 2: Convert to fraction form
    3,312.29/4,569.96 = 1,985.51/x
  3. Step 3: Cross multiply
    3,312.29x = 4,569.96 × 1,985.51
  4. Step 4: Simplify right side
    3,312.29x = 9,073,689.85
  5. Step 5: Solve for x
    x = 9,073,689.85/3,312.29
  6. Step 6: Final answer
    x = 2,739.40

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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.