Home / 2,916.54-4,022.55-1,868.70

Finding the Fourth Proportional to 2,916.54, 4,022.55 and 1,868.70

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Solution

The fourth proportional to 2,916.54, 4,022.55 and 1,868.70 is: 2,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.54 : 4,022.55 = 1,868.70 : x
  2. Step 2: Convert to fraction form
    2,916.54/4,022.55 = 1,868.70/x
  3. Step 3: Cross multiply
    2,916.54x = 4,022.55 × 1,868.70
  4. Step 4: Simplify right side
    2,916.54x = 7,516,939.19
  5. Step 5: Solve for x
    x = 7,516,939.19/2,916.54
  6. Step 6: Final answer
    x = 2,577.35

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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.