Home / 7,389.60-11,081.70-2,459.40

Finding the Fourth Proportional to 7,389.60, 11,081.70 and 2,459.40

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Solution

The fourth proportional to 7,389.60, 11,081.70 and 2,459.40 is: 3,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.60 : 11,081.70 = 2,459.40 : x
  2. Step 2: Convert to fraction form
    7,389.60/11,081.70 = 2,459.40/x
  3. Step 3: Cross multiply
    7,389.60x = 11,081.70 × 2,459.40
  4. Step 4: Simplify right side
    7,389.60x = 27,254,332.98
  5. Step 5: Solve for x
    x = 27,254,332.98/7,389.60
  6. Step 6: Final answer
    x = 3,688.20

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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.