Home / 5,275.51-7,280.36-2,917.87

Finding the Fourth Proportional to 5,275.51, 7,280.36 and 2,917.87

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Solution

The fourth proportional to 5,275.51, 7,280.36 and 2,917.87 is: 4,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.51 : 7,280.36 = 2,917.87 : x
  2. Step 2: Convert to fraction form
    5,275.51/7,280.36 = 2,917.87/x
  3. Step 3: Cross multiply
    5,275.51x = 7,280.36 × 2,917.87
  4. Step 4: Simplify right side
    5,275.51x = 21,243,144.03
  5. Step 5: Solve for x
    x = 21,243,144.03/5,275.51
  6. Step 6: Final answer
    x = 4,026.75

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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.