Home / 3,312.23-4,570.34-1,985.63

Finding the Fourth Proportional to 3,312.23, 4,570.34 and 1,985.63

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Solution

The fourth proportional to 3,312.23, 4,570.34 and 1,985.63 is: 2,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.23 : 4,570.34 = 1,985.63 : x
  2. Step 2: Convert to fraction form
    3,312.23/4,570.34 = 1,985.63/x
  3. Step 3: Cross multiply
    3,312.23x = 4,570.34 × 1,985.63
  4. Step 4: Simplify right side
    3,312.23x = 9,074,971.43
  5. Step 5: Solve for x
    x = 9,074,971.43/3,312.23
  6. Step 6: Final answer
    x = 2,739.84

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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.