Home / 3,509.02-4,842.75-2,111.50

Finding the Fourth Proportional to 3,509.02, 4,842.75 and 2,111.50

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Solution

The fourth proportional to 3,509.02, 4,842.75 and 2,111.50 is: 2,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.02 : 4,842.75 = 2,111.50 : x
  2. Step 2: Convert to fraction form
    3,509.02/4,842.75 = 2,111.50/x
  3. Step 3: Cross multiply
    3,509.02x = 4,842.75 × 2,111.50
  4. Step 4: Simplify right side
    3,509.02x = 10,225,466.63
  5. Step 5: Solve for x
    x = 10,225,466.63/3,509.02
  6. Step 6: Final answer
    x = 2,914.05

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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.