Home / 4,985.13-6,875.55-4,649.79

Finding the Fourth Proportional to 4,985.13, 6,875.55 and 4,649.79

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Solution

The fourth proportional to 4,985.13, 6,875.55 and 4,649.79 is: 6,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.13 : 6,875.55 = 4,649.79 : x
  2. Step 2: Convert to fraction form
    4,985.13/6,875.55 = 4,649.79/x
  3. Step 3: Cross multiply
    4,985.13x = 6,875.55 × 4,649.79
  4. Step 4: Simplify right side
    4,985.13x = 31,969,863.63
  5. Step 5: Solve for x
    x = 31,969,863.63/4,985.13
  6. Step 6: Final answer
    x = 6,413.05

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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.