Home / 3,130.56-4,689.63-2,087.46

Finding the Fourth Proportional to 3,130.56, 4,689.63 and 2,087.46

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Solution

The fourth proportional to 3,130.56, 4,689.63 and 2,087.46 is: 3,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.56 : 4,689.63 = 2,087.46 : x
  2. Step 2: Convert to fraction form
    3,130.56/4,689.63 = 2,087.46/x
  3. Step 3: Cross multiply
    3,130.56x = 4,689.63 × 2,087.46
  4. Step 4: Simplify right side
    3,130.56x = 9,789,415.04
  5. Step 5: Solve for x
    x = 9,789,415.04/3,130.56
  6. Step 6: Final answer
    x = 3,127.05

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1.5x scale

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.