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Finding the Fourth Proportional to 2,875.95, 4,307.54 and 2,806.11

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Solution

The fourth proportional to 2,875.95, 4,307.54 and 2,806.11 is: 4,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.95 : 4,307.54 = 2,806.11 : x
  2. Step 2: Convert to fraction form
    2,875.95/4,307.54 = 2,806.11/x
  3. Step 3: Cross multiply
    2,875.95x = 4,307.54 × 2,806.11
  4. Step 4: Simplify right side
    2,875.95x = 12,087,417.04
  5. Step 5: Solve for x
    x = 12,087,417.04/2,875.95
  6. Step 6: Final answer
    x = 4,202.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.