Home / 5,275.07-7,278.74-2,916.75

Finding the Fourth Proportional to 5,275.07, 7,278.74 and 2,916.75

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Solution

The fourth proportional to 5,275.07, 7,278.74 and 2,916.75 is: 4,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.07 : 7,278.74 = 2,916.75 : x
  2. Step 2: Convert to fraction form
    5,275.07/7,278.74 = 2,916.75/x
  3. Step 3: Cross multiply
    5,275.07x = 7,278.74 × 2,916.75
  4. Step 4: Simplify right side
    5,275.07x = 21,230,250.31
  5. Step 5: Solve for x
    x = 21,230,250.31/5,275.07
  6. Step 6: Final answer
    x = 4,024.64

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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.