Home / 5,615.36-8,430.34-4,317.74

Finding the Fourth Proportional to 5,615.36, 8,430.34 and 4,317.74

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Solution

The fourth proportional to 5,615.36, 8,430.34 and 4,317.74 is: 6,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.36 : 8,430.34 = 4,317.74 : x
  2. Step 2: Convert to fraction form
    5,615.36/8,430.34 = 4,317.74/x
  3. Step 3: Cross multiply
    5,615.36x = 8,430.34 × 4,317.74
  4. Step 4: Simplify right side
    5,615.36x = 36,400,016.23
  5. Step 5: Solve for x
    x = 36,400,016.23/5,615.36
  6. Step 6: Final answer
    x = 6,482.22

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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.