Home / 2,848.70-3,930.47-2,650.51

Finding the Fourth Proportional to 2,848.70, 3,930.47 and 2,650.51

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Solution

The fourth proportional to 2,848.70, 3,930.47 and 2,650.51 is: 3,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.70 : 3,930.47 = 2,650.51 : x
  2. Step 2: Convert to fraction form
    2,848.70/3,930.47 = 2,650.51/x
  3. Step 3: Cross multiply
    2,848.70x = 3,930.47 × 2,650.51
  4. Step 4: Simplify right side
    2,848.70x = 10,417,730.39
  5. Step 5: Solve for x
    x = 10,417,730.39/2,848.70
  6. Step 6: Final answer
    x = 3,657.01

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1.5x scale

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.