Home / 1,356.65-1,873.72-913.79

Finding the Fourth Proportional to 1,356.65, 1,873.72 and 913.79

Calculator

Solution

The fourth proportional to 1,356.65, 1,873.72 and 913.79 is: 1,262.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.65 : 1,873.72 = 913.79 : x
  2. Step 2: Convert to fraction form
    1,356.65/1,873.72 = 913.79/x
  3. Step 3: Cross multiply
    1,356.65x = 1,873.72 × 913.79
  4. Step 4: Simplify right side
    1,356.65x = 1,712,186.60
  5. Step 5: Solve for x
    x = 1,712,186.60/1,356.65
  6. Step 6: Final answer
    x = 1,262.07

Related Problems

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.