Home / 3,012.93-4,130.78-2,957.45

Finding the Fourth Proportional to 3,012.93, 4,130.78 and 2,957.45

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Solution

The fourth proportional to 3,012.93, 4,130.78 and 2,957.45 is: 4,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.93 : 4,130.78 = 2,957.45 : x
  2. Step 2: Convert to fraction form
    3,012.93/4,130.78 = 2,957.45/x
  3. Step 3: Cross multiply
    3,012.93x = 4,130.78 × 2,957.45
  4. Step 4: Simplify right side
    3,012.93x = 12,216,539.87
  5. Step 5: Solve for x
    x = 12,216,539.87/3,012.93
  6. Step 6: Final answer
    x = 4,054.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.