Home / 6,985.55-10,478.82-2,603

Finding the Fourth Proportional to 6,985.55, 10,478.82 and 2,603

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Solution

The fourth proportional to 6,985.55, 10,478.82 and 2,603 is: 3,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.55 : 10,478.82 = 2,603 : x
  2. Step 2: Convert to fraction form
    6,985.55/10,478.82 = 2,603/x
  3. Step 3: Cross multiply
    6,985.55x = 10,478.82 × 2,603
  4. Step 4: Simplify right side
    6,985.55x = 27,276,368.46
  5. Step 5: Solve for x
    x = 27,276,368.46/6,985.55
  6. Step 6: Final answer
    x = 3,904.68

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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.