Home / 3,130.46-4,319.06-1,803.98

Finding the Fourth Proportional to 3,130.46, 4,319.06 and 1,803.98

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Solution

The fourth proportional to 3,130.46, 4,319.06 and 1,803.98 is: 2,488.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.46 : 4,319.06 = 1,803.98 : x
  2. Step 2: Convert to fraction form
    3,130.46/4,319.06 = 1,803.98/x
  3. Step 3: Cross multiply
    3,130.46x = 4,319.06 × 1,803.98
  4. Step 4: Simplify right side
    3,130.46x = 7,791,499.64
  5. Step 5: Solve for x
    x = 7,791,499.64/3,130.46
  6. Step 6: Final answer
    x = 2,488.93

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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.