Home / 1,840.02-2,539.35-1,210.74

Finding the Fourth Proportional to 1,840.02, 2,539.35 and 1,210.74

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Solution

The fourth proportional to 1,840.02, 2,539.35 and 1,210.74 is: 1,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.02 : 2,539.35 = 1,210.74 : x
  2. Step 2: Convert to fraction form
    1,840.02/2,539.35 = 1,210.74/x
  3. Step 3: Cross multiply
    1,840.02x = 2,539.35 × 1,210.74
  4. Step 4: Simplify right side
    1,840.02x = 3,074,492.62
  5. Step 5: Solve for x
    x = 3,074,492.62/1,840.02
  6. Step 6: Final answer
    x = 1,670.90

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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.