Home / 6,277.02-9,415.80-2,117.40

Finding the Fourth Proportional to 6,277.02, 9,415.80 and 2,117.40

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Solution

The fourth proportional to 6,277.02, 9,415.80 and 2,117.40 is: 3,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,277.02 : 9,415.80 = 2,117.40 : x
  2. Step 2: Convert to fraction form
    6,277.02/9,415.80 = 2,117.40/x
  3. Step 3: Cross multiply
    6,277.02x = 9,415.80 × 2,117.40
  4. Step 4: Simplify right side
    6,277.02x = 19,937,014.92
  5. Step 5: Solve for x
    x = 19,937,014.92/6,277.02
  6. Step 6: Final answer
    x = 3,176.19

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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.