Home / 2,430.08-3,639.70-2,113.68

Finding the Fourth Proportional to 2,430.08, 3,639.70 and 2,113.68

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Solution

The fourth proportional to 2,430.08, 3,639.70 and 2,113.68 is: 3,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.08 : 3,639.70 = 2,113.68 : x
  2. Step 2: Convert to fraction form
    2,430.08/3,639.70 = 2,113.68/x
  3. Step 3: Cross multiply
    2,430.08x = 3,639.70 × 2,113.68
  4. Step 4: Simplify right side
    2,430.08x = 7,693,161.10
  5. Step 5: Solve for x
    x = 7,693,161.10/2,430.08
  6. Step 6: Final answer
    x = 3,165.81

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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.