Home / 4,288.04-5,918.65-2,520.21

Finding the Fourth Proportional to 4,288.04, 5,918.65 and 2,520.21

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Solution

The fourth proportional to 4,288.04, 5,918.65 and 2,520.21 is: 3,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.04 : 5,918.65 = 2,520.21 : x
  2. Step 2: Convert to fraction form
    4,288.04/5,918.65 = 2,520.21/x
  3. Step 3: Cross multiply
    4,288.04x = 5,918.65 × 2,520.21
  4. Step 4: Simplify right side
    4,288.04x = 14,916,240.92
  5. Step 5: Solve for x
    x = 14,916,240.92/4,288.04
  6. Step 6: Final answer
    x = 3,478.57

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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.