Home / 5,274.30-7,278.57-2,916.51

Finding the Fourth Proportional to 5,274.30, 7,278.57 and 2,916.51

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Solution

The fourth proportional to 5,274.30, 7,278.57 and 2,916.51 is: 4,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.30 : 7,278.57 = 2,916.51 : x
  2. Step 2: Convert to fraction form
    5,274.30/7,278.57 = 2,916.51/x
  3. Step 3: Cross multiply
    5,274.30x = 7,278.57 × 2,916.51
  4. Step 4: Simplify right side
    5,274.30x = 21,228,022.19
  5. Step 5: Solve for x
    x = 21,228,022.19/5,274.30
  6. Step 6: Final answer
    x = 4,024.80

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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.