Home / 2,545.77-3,508.40-1,985.35

Finding the Fourth Proportional to 2,545.77, 3,508.40 and 1,985.35

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Solution

The fourth proportional to 2,545.77, 3,508.40 and 1,985.35 is: 2,736.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.77 : 3,508.40 = 1,985.35 : x
  2. Step 2: Convert to fraction form
    2,545.77/3,508.40 = 1,985.35/x
  3. Step 3: Cross multiply
    2,545.77x = 3,508.40 × 1,985.35
  4. Step 4: Simplify right side
    2,545.77x = 6,965,401.94
  5. Step 5: Solve for x
    x = 6,965,401.94/2,545.77
  6. Step 6: Final answer
    x = 2,736.07

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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.