Home / 2,864.51-4,295.85-916.25

Finding the Fourth Proportional to 2,864.51, 4,295.85 and 916.25

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Solution

The fourth proportional to 2,864.51, 4,295.85 and 916.25 is: 1,374.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.51 : 4,295.85 = 916.25 : x
  2. Step 2: Convert to fraction form
    2,864.51/4,295.85 = 916.25/x
  3. Step 3: Cross multiply
    2,864.51x = 4,295.85 × 916.25
  4. Step 4: Simplify right side
    2,864.51x = 3,936,072.56
  5. Step 5: Solve for x
    x = 3,936,072.56/2,864.51
  6. Step 6: Final answer
    x = 1,374.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.