Home / 3,181.02-4,389.57-1,783.50

Finding the Fourth Proportional to 3,181.02, 4,389.57 and 1,783.50

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Solution

The fourth proportional to 3,181.02, 4,389.57 and 1,783.50 is: 2,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.02 : 4,389.57 = 1,783.50 : x
  2. Step 2: Convert to fraction form
    3,181.02/4,389.57 = 1,783.50/x
  3. Step 3: Cross multiply
    3,181.02x = 4,389.57 × 1,783.50
  4. Step 4: Simplify right side
    3,181.02x = 7,828,798.10
  5. Step 5: Solve for x
    x = 7,828,798.10/3,181.02
  6. Step 6: Final answer
    x = 2,461.10

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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.