Home / 4,651.40-6,420.06-2,859.32

Finding the Fourth Proportional to 4,651.40, 6,420.06 and 2,859.32

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Solution

The fourth proportional to 4,651.40, 6,420.06 and 2,859.32 is: 3,946.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.40 : 6,420.06 = 2,859.32 : x
  2. Step 2: Convert to fraction form
    4,651.40/6,420.06 = 2,859.32/x
  3. Step 3: Cross multiply
    4,651.40x = 6,420.06 × 2,859.32
  4. Step 4: Simplify right side
    4,651.40x = 18,356,973.86
  5. Step 5: Solve for x
    x = 18,356,973.86/4,651.40
  6. Step 6: Final answer
    x = 3,946.55

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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.