Home / 3,905.08-5,856.90-1,307.32

Finding the Fourth Proportional to 3,905.08, 5,856.90 and 1,307.32

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Solution

The fourth proportional to 3,905.08, 5,856.90 and 1,307.32 is: 1,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.08 : 5,856.90 = 1,307.32 : x
  2. Step 2: Convert to fraction form
    3,905.08/5,856.90 = 1,307.32/x
  3. Step 3: Cross multiply
    3,905.08x = 5,856.90 × 1,307.32
  4. Step 4: Simplify right side
    3,905.08x = 7,656,842.51
  5. Step 5: Solve for x
    x = 7,656,842.51/3,905.08
  6. Step 6: Final answer
    x = 1,960.74

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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.