Home / 4,643.85-6,402.19-3,315.25

Finding the Fourth Proportional to 4,643.85, 6,402.19 and 3,315.25

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Solution

The fourth proportional to 4,643.85, 6,402.19 and 3,315.25 is: 4,570.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.85 : 6,402.19 = 3,315.25 : x
  2. Step 2: Convert to fraction form
    4,643.85/6,402.19 = 3,315.25/x
  3. Step 3: Cross multiply
    4,643.85x = 6,402.19 × 3,315.25
  4. Step 4: Simplify right side
    4,643.85x = 21,224,811.81
  5. Step 5: Solve for x
    x = 21,224,811.81/4,643.85
  6. Step 6: Final answer
    x = 4,570.52

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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.