Home / 4,870.47-7,305.70-3,140.31

Finding the Fourth Proportional to 4,870.47, 7,305.70 and 3,140.31

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Solution

The fourth proportional to 4,870.47, 7,305.70 and 3,140.31 is: 4,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,870.47 : 7,305.70 = 3,140.31 : x
  2. Step 2: Convert to fraction form
    4,870.47/7,305.70 = 3,140.31/x
  3. Step 3: Cross multiply
    4,870.47x = 7,305.70 × 3,140.31
  4. Step 4: Simplify right side
    4,870.47x = 22,942,162.77
  5. Step 5: Solve for x
    x = 22,942,162.77/4,870.47
  6. Step 6: Final answer
    x = 4,710.46

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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.