Home / 2,916.10-4,025.07-1,985.14

Finding the Fourth Proportional to 2,916.10, 4,025.07 and 1,985.14

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Solution

The fourth proportional to 2,916.10, 4,025.07 and 1,985.14 is: 2,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.10 : 4,025.07 = 1,985.14 : x
  2. Step 2: Convert to fraction form
    2,916.10/4,025.07 = 1,985.14/x
  3. Step 3: Cross multiply
    2,916.10x = 4,025.07 × 1,985.14
  4. Step 4: Simplify right side
    2,916.10x = 7,990,327.46
  5. Step 5: Solve for x
    x = 7,990,327.46/2,916.10
  6. Step 6: Final answer
    x = 2,740.07

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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.