Home / 2,485.84-3,430.37-1,490.53

Finding the Fourth Proportional to 2,485.84, 3,430.37 and 1,490.53

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Solution

The fourth proportional to 2,485.84, 3,430.37 and 1,490.53 is: 2,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.84 : 3,430.37 = 1,490.53 : x
  2. Step 2: Convert to fraction form
    2,485.84/3,430.37 = 1,490.53/x
  3. Step 3: Cross multiply
    2,485.84x = 3,430.37 × 1,490.53
  4. Step 4: Simplify right side
    2,485.84x = 5,113,044.79
  5. Step 5: Solve for x
    x = 5,113,044.79/2,485.84
  6. Step 6: Final answer
    x = 2,056.87

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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.