Home / 2,756.64-4,135.56-1,113.24

Finding the Fourth Proportional to 2,756.64, 4,135.56 and 1,113.24

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Solution

The fourth proportional to 2,756.64, 4,135.56 and 1,113.24 is: 1,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.64 : 4,135.56 = 1,113.24 : x
  2. Step 2: Convert to fraction form
    2,756.64/4,135.56 = 1,113.24/x
  3. Step 3: Cross multiply
    2,756.64x = 4,135.56 × 1,113.24
  4. Step 4: Simplify right side
    2,756.64x = 4,603,870.81
  5. Step 5: Solve for x
    x = 4,603,870.81/2,756.64
  6. Step 6: Final answer
    x = 1,670.10

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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.