Home / 5,281.94-7,282.45-3,390.18

Finding the Fourth Proportional to 5,281.94, 7,282.45 and 3,390.18

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Solution

The fourth proportional to 5,281.94, 7,282.45 and 3,390.18 is: 4,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.94 : 7,282.45 = 3,390.18 : x
  2. Step 2: Convert to fraction form
    5,281.94/7,282.45 = 3,390.18/x
  3. Step 3: Cross multiply
    5,281.94x = 7,282.45 × 3,390.18
  4. Step 4: Simplify right side
    5,281.94x = 24,688,816.34
  5. Step 5: Solve for x
    x = 24,688,816.34/5,281.94
  6. Step 6: Final answer
    x = 4,674.19

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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.