Home / 1,870.02-2,580.21-1,206.77

Finding the Fourth Proportional to 1,870.02, 2,580.21 and 1,206.77

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Solution

The fourth proportional to 1,870.02, 2,580.21 and 1,206.77 is: 1,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.02 : 2,580.21 = 1,206.77 : x
  2. Step 2: Convert to fraction form
    1,870.02/2,580.21 = 1,206.77/x
  3. Step 3: Cross multiply
    1,870.02x = 2,580.21 × 1,206.77
  4. Step 4: Simplify right side
    1,870.02x = 3,113,707.12
  5. Step 5: Solve for x
    x = 3,113,707.12/1,870.02
  6. Step 6: Final answer
    x = 1,665.07

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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.