Home / 2,913.04-4,019.88-1,586.72

Finding the Fourth Proportional to 2,913.04, 4,019.88 and 1,586.72

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Solution

The fourth proportional to 2,913.04, 4,019.88 and 1,586.72 is: 2,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.04 : 4,019.88 = 1,586.72 : x
  2. Step 2: Convert to fraction form
    2,913.04/4,019.88 = 1,586.72/x
  3. Step 3: Cross multiply
    2,913.04x = 4,019.88 × 1,586.72
  4. Step 4: Simplify right side
    2,913.04x = 6,378,423.99
  5. Step 5: Solve for x
    x = 6,378,423.99/2,913.04
  6. Step 6: Final answer
    x = 2,189.61

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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.