Home / 5,376.84-7,421.40-3,281.64

Finding the Fourth Proportional to 5,376.84, 7,421.40 and 3,281.64

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Solution

The fourth proportional to 5,376.84, 7,421.40 and 3,281.64 is: 4,529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.84 : 7,421.40 = 3,281.64 : x
  2. Step 2: Convert to fraction form
    5,376.84/7,421.40 = 3,281.64/x
  3. Step 3: Cross multiply
    5,376.84x = 7,421.40 × 3,281.64
  4. Step 4: Simplify right side
    5,376.84x = 24,354,363.10
  5. Step 5: Solve for x
    x = 24,354,363.10/5,376.84
  6. Step 6: Final answer
    x = 4,529.49

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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.