Home / 3,070.42-4,237.14-1,673.20

Finding the Fourth Proportional to 3,070.42, 4,237.14 and 1,673.20

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Solution

The fourth proportional to 3,070.42, 4,237.14 and 1,673.20 is: 2,308.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.42 : 4,237.14 = 1,673.20 : x
  2. Step 2: Convert to fraction form
    3,070.42/4,237.14 = 1,673.20/x
  3. Step 3: Cross multiply
    3,070.42x = 4,237.14 × 1,673.20
  4. Step 4: Simplify right side
    3,070.42x = 7,089,582.65
  5. Step 5: Solve for x
    x = 7,089,582.65/3,070.42
  6. Step 6: Final answer
    x = 2,308.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.