Home / 7,421.84-11,132.72-1,875.18

Finding the Fourth Proportional to 7,421.84, 11,132.72 and 1,875.18

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Solution

The fourth proportional to 7,421.84, 11,132.72 and 1,875.18 is: 2,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.84 : 11,132.72 = 1,875.18 : x
  2. Step 2: Convert to fraction form
    7,421.84/11,132.72 = 1,875.18/x
  3. Step 3: Cross multiply
    7,421.84x = 11,132.72 × 1,875.18
  4. Step 4: Simplify right side
    7,421.84x = 20,875,853.89
  5. Step 5: Solve for x
    x = 20,875,853.89/7,421.84
  6. Step 6: Final answer
    x = 2,812.76

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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.