Home / 3,135.32-4,678.44-3,117.10

Finding the Fourth Proportional to 3,135.32, 4,678.44 and 3,117.10

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Solution

The fourth proportional to 3,135.32, 4,678.44 and 3,117.10 is: 4,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.32 : 4,678.44 = 3,117.10 : x
  2. Step 2: Convert to fraction form
    3,135.32/4,678.44 = 3,117.10/x
  3. Step 3: Cross multiply
    3,135.32x = 4,678.44 × 3,117.10
  4. Step 4: Simplify right side
    3,135.32x = 14,583,165.32
  5. Step 5: Solve for x
    x = 14,583,165.32/3,135.32
  6. Step 6: Final answer
    x = 4,651.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.