Home / 3,345.21-4,616.40-1,853.15

Finding the Fourth Proportional to 3,345.21, 4,616.40 and 1,853.15

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Solution

The fourth proportional to 3,345.21, 4,616.40 and 1,853.15 is: 2,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.21 : 4,616.40 = 1,853.15 : x
  2. Step 2: Convert to fraction form
    3,345.21/4,616.40 = 1,853.15/x
  3. Step 3: Cross multiply
    3,345.21x = 4,616.40 × 1,853.15
  4. Step 4: Simplify right side
    3,345.21x = 8,554,881.07
  5. Step 5: Solve for x
    x = 8,554,881.07/3,345.21
  6. Step 6: Final answer
    x = 2,557.35

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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.