Home / 5,803.65-8,705.34-1,421.08

Finding the Fourth Proportional to 5,803.65, 8,705.34 and 1,421.08

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Solution

The fourth proportional to 5,803.65, 8,705.34 and 1,421.08 is: 2,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.65 : 8,705.34 = 1,421.08 : x
  2. Step 2: Convert to fraction form
    5,803.65/8,705.34 = 1,421.08/x
  3. Step 3: Cross multiply
    5,803.65x = 8,705.34 × 1,421.08
  4. Step 4: Simplify right side
    5,803.65x = 12,370,962.80
  5. Step 5: Solve for x
    x = 12,370,962.80/5,803.65
  6. Step 6: Final answer
    x = 2,131.58

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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.