Home / 4,317.36-6,478.32-1,720.32

Finding the Fourth Proportional to 4,317.36, 6,478.32 and 1,720.32

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Solution

The fourth proportional to 4,317.36, 6,478.32 and 1,720.32 is: 2,581.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,317.36 : 6,478.32 = 1,720.32 : x
  2. Step 2: Convert to fraction form
    4,317.36/6,478.32 = 1,720.32/x
  3. Step 3: Cross multiply
    4,317.36x = 6,478.32 × 1,720.32
  4. Step 4: Simplify right side
    4,317.36x = 11,144,783.46
  5. Step 5: Solve for x
    x = 11,144,783.46/4,317.36
  6. Step 6: Final answer
    x = 2,581.39

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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.