Home / 3,587.08-5,378.40-1,612.32

Finding the Fourth Proportional to 3,587.08, 5,378.40 and 1,612.32

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Solution

The fourth proportional to 3,587.08, 5,378.40 and 1,612.32 is: 2,417.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.08 : 5,378.40 = 1,612.32 : x
  2. Step 2: Convert to fraction form
    3,587.08/5,378.40 = 1,612.32/x
  3. Step 3: Cross multiply
    3,587.08x = 5,378.40 × 1,612.32
  4. Step 4: Simplify right side
    3,587.08x = 8,671,701.89
  5. Step 5: Solve for x
    x = 8,671,701.89/3,587.08
  6. Step 6: Final answer
    x = 2,417.48

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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.