Home / 3,345.12-4,616.40-1,948.32

Finding the Fourth Proportional to 3,345.12, 4,616.40 and 1,948.32

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Solution

The fourth proportional to 3,345.12, 4,616.40 and 1,948.32 is: 2,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.12 : 4,616.40 = 1,948.32 : x
  2. Step 2: Convert to fraction form
    3,345.12/4,616.40 = 1,948.32/x
  3. Step 3: Cross multiply
    3,345.12x = 4,616.40 × 1,948.32
  4. Step 4: Simplify right side
    3,345.12x = 8,994,224.45
  5. Step 5: Solve for x
    x = 8,994,224.45/3,345.12
  6. Step 6: Final answer
    x = 2,688.76

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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.