Home / 7,746.76-10,690.49-4,390.21

Finding the Fourth Proportional to 7,746.76, 10,690.49 and 4,390.21

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Solution

The fourth proportional to 7,746.76, 10,690.49 and 4,390.21 is: 6,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,746.76 : 10,690.49 = 4,390.21 : x
  2. Step 2: Convert to fraction form
    7,746.76/10,690.49 = 4,390.21/x
  3. Step 3: Cross multiply
    7,746.76x = 10,690.49 × 4,390.21
  4. Step 4: Simplify right side
    7,746.76x = 46,933,480.35
  5. Step 5: Solve for x
    x = 46,933,480.35/7,746.76
  6. Step 6: Final answer
    x = 6,058.47

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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.