Home / 4,478.61-6,718.91-1,358.67

Finding the Fourth Proportional to 4,478.61, 6,718.91 and 1,358.67

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Solution

The fourth proportional to 4,478.61, 6,718.91 and 1,358.67 is: 2,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.61 : 6,718.91 = 1,358.67 : x
  2. Step 2: Convert to fraction form
    4,478.61/6,718.91 = 1,358.67/x
  3. Step 3: Cross multiply
    4,478.61x = 6,718.91 × 1,358.67
  4. Step 4: Simplify right side
    4,478.61x = 9,128,774.66
  5. Step 5: Solve for x
    x = 9,128,774.66/4,478.61
  6. Step 6: Final answer
    x = 2,038.31

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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.