Home / 5,980.21-8,970.63-1,820.35

Finding the Fourth Proportional to 5,980.21, 8,970.63 and 1,820.35

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Solution

The fourth proportional to 5,980.21, 8,970.63 and 1,820.35 is: 2,730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.21 : 8,970.63 = 1,820.35 : x
  2. Step 2: Convert to fraction form
    5,980.21/8,970.63 = 1,820.35/x
  3. Step 3: Cross multiply
    5,980.21x = 8,970.63 × 1,820.35
  4. Step 4: Simplify right side
    5,980.21x = 16,329,641.47
  5. Step 5: Solve for x
    x = 16,329,641.47/5,980.21
  6. Step 6: Final answer
    x = 2,730.62

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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.