Home / 5,205.61-7,809.57-2,430.77

Finding the Fourth Proportional to 5,205.61, 7,809.57 and 2,430.77

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Solution

The fourth proportional to 5,205.61, 7,809.57 and 2,430.77 is: 3,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.61 : 7,809.57 = 2,430.77 : x
  2. Step 2: Convert to fraction form
    5,205.61/7,809.57 = 2,430.77/x
  3. Step 3: Cross multiply
    5,205.61x = 7,809.57 × 2,430.77
  4. Step 4: Simplify right side
    5,205.61x = 18,983,268.47
  5. Step 5: Solve for x
    x = 18,983,268.47/5,205.61
  6. Step 6: Final answer
    x = 3,646.69

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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.